KITO
Lifting Clamps & Magnets
Lifting clamps and magnets provide the direct gripping interface between the lifting device and the load when conventional slinging is impractical—because the load has no lifting eyes, cannot be wrapped, or must be lifted from a single surface without edge damage. Mechanical lifting clamps grip steel plate, beams, pipes, and structural sections using hardened cam‑actuated jaws that tighten proportionally with the load—the heavier the lift, the stronger the grip. Lifting magnets use permanent‑magnet circuits to attach to ferrous materials without the need for electrical power. Crosby IP, IPHOZ, and related clamp models feature welded alloy steel bodies, forged alloy gripping components, and a 5:1 design factor with individual proof‑testing to 2× WLL. The Flaig and Gunnebo Industries magnet ranges include permanent‑magnet lifters rated up to several tonnes, designed for single‑plate handling, profile lifting, and demolition‑grade steel scrap management.
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Self‑Tightening Cam Mechanism
The clamp jaw geometry ensures that gripping force increases in direct proportion to the lifted load, providing a positive, slip‑resistant hold that cannot be accidentally released under tension.
Zero Load Preparation Required
Unlike welded lifting lugs that require grinding, NDT, and paint repair after removal, clamps and magnets engage instantly on bare or primed steel surfaces, reducing material handling cycle time by 60–80%.
Individual Proof Testing with Certification
Every clamp is proof‑tested to 2× Working Load Limit and supplied with an individual test certificate, satisfying the documented inspection requirements of LOLER, ASME B30.20, and ISO 9001 quality systems.
Permanent Magnet Technology – No Power, No Batteries
Flaig and Gunnebo permanent‑magnet lifters maintain full holding force indefinitely without electrical supply, eliminating the dropped‑load risk associated with power‑failure on electromagnetic systems.
Application‑Specific Jaw Profiles
Vertical clamps for plate lifting, horizontal clamps for beam and section turning, rail clamps for track handling, and pipe clamps for cylindrical loads ensure that the correct jaw geometry is matched to the load surface.
Corrosion‑Protected for Harsh Environments
Alloy steel bodies with protective finishes and stainless‑steel options ensure long‑term reliability in outdoor storage yards, coastal fabrication shops, and marine environments.
Why Lifting Clamps Outperform Welded Lugs for Steel Handling
The traditional method of handling steel plate—welding a temporary lifting lug, lifting the plate, then cutting off the lug, grinding the attachment point smooth, and conducting NDT to confirm no parent‑metal damage—consumes skilled labour that contributes zero value to the final product. A lifting clamp eliminates the entire weld‑grind‑inspect sequence. The plate is lifted directly from the stockpile, moved to the cutting table, and released instantly. There is no heat‑affected zone, no risk of hydrogen cracking, no arc strike damage, and no post‑lift dressing. For service centres processing hundreds of plates per shift, the clamp's cycle‑time advantage alone often recovers its purchase price within weeks.
Permanent vs. Electro Lifting Magnets: Choosing the Right Technology
Permanent lifting magnets maintain their holding force without any external power source, using a manually operated lever to shunt or engage the magnetic field. This makes them intrinsically safe for applications where power interruption would cause a dropped load, and ideal for intermittent use where the energy cost of continuously energising an electromagnet is unjustified. Electromagnets provide variable holding force, remote on‑off control, and higher capacity for very large plate dimensions, but require a continuous DC power supply with battery backup. For typical fabrication shop and steel stockyard applications, permanent magnets (Flaig, Gunnebo) provide the optimum balance of safety, simplicity, and total cost of ownership.